Driving a 3d model from sketch

[Anonymous]

Wanted to get the best practice for building a 3D model where I know I'll be editing it in the future. What I have done is sketch the top then extruded to thickness then drew another sketch on a face on the side hoping that from there I could edit a dimension to change a part thickness. What I get is a driven dimension that will not edit.

So should the work flow been after the top sketch start a new plane and offset it to the edge of the part then dimension it then extrude from the top down to the side sketch? From there will it be parametric, just edit the side sketch?

Its a dummy part just trying to get my head around Fusion work flow.

[davebYYPCU]

Sort of backwards, there,

To drive the extrusion, your second sketch needs to exist, before the extrusion.

when making the extrusion in this scenario, you would extrude to object, the dimensioned sketch point / line being the object.

Otherwise you can edit the parameter of the extrusion distance in the parameters window, and the sketch will update.

If the sketch comes after the extrusion, the sketch dimension stays as driven.

Might help....

[chrisplyler · Accepted solution]

Option #1 - Just set the height of the extrusion during the Extrusion process. If you want to change it, find the extrusion on the timeline and Edit Feature, changing the height value.

Option #2 - Create a second sketch on a vertical plane, draw a Line up from the bottom of your intended extrusion to the top height of it, dimension that line's length. Now stop the sketch and create the extrusion, and instead of a height value, give it an "to" constraint wherein you select the top point of that vertical line. Kind of a weird option, but certainly doable. Now to change the height of the extrusion, you have to edit that second sketch and change the line's length dimension value. The extrusion will change to match the line's length.

Option #3 - Create a user parameter, and give it a value representing the intended height of your extrusion. Create the extrusion, and when typing in a height, type in the parameter's name instead. Now to alter the height you just change the parameter's value.